Fig. 1: Flow chart of the study population depicting screening, entrollment and loss to follow-up.
aThe total number of individuals screened for eligibility was not recorded.
In the flow chart the number of patients who were screened for this study and the reasons for exclusion are documented. Number of patients and healthy controls who received one, two or all three vaccinations and the number of patients/healthy controls who were lost to follow-up at each step of the study are depicted.
